Download signed documents with a date range

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using Silanis.ESL.SDK;
using Silanis.ESL.SDK.Builder;
using System.Diagnostics;
using System.IO;

namespace DownloadDocumentsDateRange
{
    class DownloadDocuments
    {
        //replace apiKey placeholder with your own value
        private static String apiUrl = "https://sandbox.e-signlive.com/api";
        private static String apiKey = "your_api_key";

        public static void Main(string[] args)
        {
            EslClient eslClient = new EslClient(apiKey, apiUrl);

            //starting point to retrieve completed packages
            int index = 1;

            //Retrieve first 50 completed packages. Packages are returned as a page from eSignLive.
            Page completed_packages = eslClient.PackageService.GetUpdatedPackagesWithinDateRange(DocumentPackageStatus.COMPLETED, new PageRequest(index, 50), DateTime.Today.AddDays(-7), DateTime.Now);

            while (index 

Let me know if anything is unclear :)